In anatomy, Flexion is movement whereby bones or other objects are brought closer together. For example, flexion of the arm involves the forearm being brought closer to the arm. Note that flexion occurs only along the sagittal plane, i.e. from the forward to backward direction, and not side-to-side direction, which would be called abduction. Flexion thereby decreses the angle between the bones of the limb at a joint Anatomical drawing of the human muscles from the Encyclopédie. ... A miserable stubborn cantankerous old mans, whos actually quite good humoured & an enjoyable compadre to play online alongside if you catch him on a good day. ... // The Human Forearm The forearm is the structure on the upper limb, between the elbow and the wrist. ... In anatomy, an arm is one of the upper limbs of a two-legged animal. ... The sagittal plane of the human body is an imaginary slice made from the top of the head down, cutting the body into two more or less mirror-image halves. ... // Introduction The movement of body structures is accomplished by the contraction of muscles. ...